APA (7th ed.) Citation

Harvard University Gray Herbarium. (1968). Gray Herbarium (Cambridge, Mass.) index. Hall.

Chicago Style (17th ed.) Citation

Harvard University Gray Herbarium. Gray Herbarium (Cambridge, Mass.) Index. Boston: Hall, 1968.

MLA (9th ed.) Citation

Harvard University Gray Herbarium. Gray Herbarium (Cambridge, Mass.) Index. Hall, 1968.